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Rozhen Night Plan

Up to ten targets, one night: each gets its good/marginal/poor windows (darkness × altitude × Moon × clouds, as on the single-target page), then the night is handed out five minutes at a time to whichever target is best — with hysteresis, so you get a few solid blocks of at least 30 minutes, not a flicker. Targets that never win a block are listed with the reason.

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Night of Monday, 16 March 2043 · astronomical night 20:01 → 04:57 (8.93 h) · Moon 38% (waxing crescent) · weather: none — the schedule is astronomy only; overall conditions unknown

M31M31 19:00–19:30: quality 0.1M31 19:30–20:05: quality 0.2M31 20:05–20:10: quality 0.3M42M42 19:00–19:30: quality 0.1M42 19:30–20:05: quality 0.3M42 20:05–21:20: quality 0.6M42 21:20–21:45: quality 0.5M42 21:45–22:05: quality 0.4M42 22:05–22:10: quality 0.3observe M42 20:25–22:10M45M45 19:00–19:30: quality 0.1M45 19:30–20:05: quality 0.3M45 20:05–20:10: quality 0.7M45 20:10–21:30: quality 0.6M45 21:30–21:45: quality 0.5M45 21:45–22:05: quality 0.4M45 22:05–22:10: quality 0.3observe M45 19:30–20:25NGC 7000NGC 7000 02:50–03:00: quality 0.4NGC 7000 03:00–03:20: quality 0.5NGC 7000 03:20–03:35: quality 0.6NGC 7000 03:35–03:50: quality 0.7NGC 7000 03:50–04:50: quality 0.8NGC 7000 04:50–05:00: quality 0.9NGC 7000 05:00–05:35: quality 0.4NGC 7000 05:35–06:05: quality 0.1observe NGC 7000 02:50–03:45V1057 CygV1057 Cyg 02:50–03:00: quality 0.4V1057 Cyg 03:00–03:20: quality 0.5V1057 Cyg 03:20–03:35: quality 0.6V1057 Cyg 03:35–03:50: quality 0.7V1057 Cyg 03:50–04:50: quality 0.8V1057 Cyg 04:50–05:00: quality 0.9V1057 Cyg 05:00–05:35: quality 0.4V1057 Cyg 05:35–06:05: quality 0.1observe V1057 Cyg 03:45–05:35M33M33 19:00–19:30: quality 0.1M33 19:30–19:45: quality 0.3M33 19:45–20:05: quality 0.2M33 20:05–20:15: quality 0.4M33 20:15–20:25: quality 0.3scheduleM45M42NGC 7000V1057 Cyg20:0022:0000:0002:0004:0006:00

Each row is the target's quality through the night, white → amber → green for 0 → 0.3 → 0.6 → 1 (the same thresholds as poor / marginal / good). Dark blue: the schedule. Grey columns: twilight.  Download: schedule CSV · targets CSV · JSON

Schedule

localtargethoursmean quality
18:25–19:30 — nothing worth pointing at — 1.08
19:30–20:25 M45 0.92 0.45
20:25–22:10 M42 1.75 0.53
22:10–02:50 — nothing worth pointing at — 4.67
02:50–03:45 NGC 7000 0.92 0.55
03:45–05:35 V1057 Cyg 1.83 0.7
05:35–06:35 — nothing worth pointing at — 1.0

Targets

targetastronomyoverallbest windowhighestMoon sep.scheduled h
M31 Andromeda Galaxy 2 unknown 20:05–20:10 (marginal) 89.8° at 13:30 49.9° 0.0
M42 Great Orion Nebula 22 unknown 20:05–21:10 (good) 42.9° at 18:20 35.1° 1.75
M45 Seven Sisters 23 unknown 20:05–21:20 (good) 72.6° at 16:35 12.0° 0.92
NGC 7000 North America Nebula 40 unknown 03:25–05:00 (good) 87.2° at 09:40 87.3° 0.92
V1057 Cyg 40 unknown 03:25–05:00 (good) 87.2° at 09:40 87.3° 1.83
M33 Triangulum Pinwheel 3 unknown 20:05–20:25 (marginal) 79.2° at 14:20 40.3° 0.0

Left out

💡 API 
curl -sS "https://devops.majbase.com/rozhen-planner/plan-api?targets=M31,M42,M45,NGC%207000&date=2043-03-16"

targets: names or RA Dec, separated by commas, semicolons or newlines, at most ten. The response carries targets[] (score, verdict, best_window, windows, transit, moon_separation), schedule[] (blocks with target, start/end in UTC and local, hours, mean_quality; target: null is idle time), unscheduled[] with a why, forecast_source, warnings[]. Missing targets → 400 {"error", "code": "targets_missing"}; an unreadable date → 400 {"error", "code": "invalid_date"}.